Add the geoplane from hendu. This surface improves visualization of large surfaces.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4538 dfc29bdd-3216-0410-991c-e03cc46cb475
Add override patch by hende, to check for proper deriving in the class tree. Added MSVC support for this feature, should work beginning with MSVC 2010

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4539 dfc29bdd-3216-0410-991c-e03cc46cb475
Fix name and parameters of draw2dImageBatch call, which was not yet used due to wrong override.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4540 dfc29bdd-3216-0410-991c-e03cc46cb475
Expose getSpeed and setSpeed of particle attraction affector

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4541 dfc29bdd-3216-0410-991c-e03cc46cb475
Oops, wrong copy'n'paste. Fixed to pure virtual

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4542 dfc29bdd-3216-0410-991c-e03cc46cb475
First round of override updates.
Some fixes:
Added get/setCurrentRenderPass to scene manager (internally renamed, exposed)
Removed destructor from light scene node.
Removed getType calls from archive loaders (one file archives have this)
Removed some internal exposures and virtual attributes for protected classes

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4543 dfc29bdd-3216-0410-991c-e03cc46cb475
Remove white spaces before semicolon

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4544 dfc29bdd-3216-0410-991c-e03cc46cb475
Second round of override checks
Exposed some more functions:
getArchiveName returning name (path) of archive
getColor and getColorHSL for color select dialog
get/setDoubleClickTime in device for setting the time offset necessary to have two separate clicks instead of a double-click

Removed deprecated getXJoint and getMS3DJoint functions

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4545 dfc29bdd-3216-0410-991c-e03cc46cb475
Fix syntax problems in Cg renderer base classes, which came from the override changes. Not yet tested, but should compile again.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4546 dfc29bdd-3216-0410-991c-e03cc46cb475
Third round of override macro updates. Should have touched all functions stating virtual for now. This might still have missed some, as sometimes the virtual keyword is missing on derived functions. And some open points are also still under consideration, will be fixed in future.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4547 dfc29bdd-3216-0410-991c-e03cc46cb475
Add equals check with tolerance in heigthmap optimizer

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4548 dfc29bdd-3216-0410-991c-e03cc46cb475
Unify texture transformation for tex coord system with mesh loader.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4549 dfc29bdd-3216-0410-991c-e03cc46cb475
Merged libpng 1.6.2 from vendor branch. Updated pnglibconf.h to latest predefined config file to catch up with latest setup requirements.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4552 dfc29bdd-3216-0410-991c-e03cc46cb475
Merged version 9 of libjpeg from vendor branch.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4553 dfc29bdd-3216-0410-991c-e03cc46cb475
Merge from vendor branch version 1.2.8 of zlib

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4555 dfc29bdd-3216-0410-991c-e03cc46cb475
Add a CMatrix4::getRotationDegrees where you can pass the scale vector if you know it (faster and useful otherwise sometimes).


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4556 dfc29bdd-3216-0410-991c-e03cc46cb475
Fix material deserialization. Empty textures were producing a texture named '0' (zero), which lead to annoying warnings all over the place. This empty string is hopefully safe everywhere.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4557 dfc29bdd-3216-0410-991c-e03cc46cb475